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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 | 1x 1x 1x 1x 1x 1x 1x 1x 1x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 5x 5x 5x 5x 5x 5x 5x 5x 4x 4x 4x 4x 4x 4x 4x 4x 5x 5x 5x 4x 4x 4x 4x 4x 4x 4x 5x 5x 5x 5x 5x 4x | import { DateTime } from "luxon"
import { SettingsJSON } from "../types/settings"
import { ApiChessData } from "../types/apidata"
/**
* Utility class to handle API requests for chess data.
*/
export class APIHandler {
private FETCH_MAX_RETRIES: number
private FETCH_RETRY_DELAY: number
/**
* Creates an instance of APIHandler.
* @param {SettingsJSON} settingsJSON - The JSON object containing settings.
*/
constructor(settingsJSON: SettingsJSON) {
this.FETCH_MAX_RETRIES = settingsJSON.FETCH_MAX_RETRIES
this.FETCH_RETRY_DELAY = settingsJSON.FETCH_RETRY_DELAY
}
/**
* Retrieves chess data for a given username.
* @param {string} username - The username for which to fetch chess data.
* @returns {Promise<ApiChessData>} A Promise that resolves to the fetched chess data.
* @throws {string} Throws an error if the maximum number of retries is exceeded.
*/
async getChessData(username: string): Promise<ApiChessData> {
let retryCount = 0
while (retryCount < this.FETCH_MAX_RETRIES) {
try {
const url = this.buildUrl(username)
return await this.fetchChessData(url)
} catch (error: any) {
if (error?.code === 301) break
if (error?.code === 404) throw `User ${username} not found`
retryCount++
if (retryCount < this.FETCH_MAX_RETRIES)
await new Promise((resolve) =>
setTimeout(resolve, this.FETCH_RETRY_DELAY)
)
}
}
throw "Max retries exceeded"
}
/**
* Fetches chess data from a given URL.
*
* @param {string} url - The URL from which to fetch chess data.
* @returns {Promise<ApiChessData>} A Promise that resolves to the fetched chess data.
*/
async fetchChessData(url: string): Promise<ApiChessData> {
const response = await fetch(url, { cache: "no-store" })
return response.json()
}
/**
* Builds the URL for fetching chess data for a given username.
* @param {string} username - The username for which to build the URL.
* @returns {string} The built URL for fetching chess data.
*/
buildUrl(username: string): string {
const date = DateTime.local().setZone("America/Los_Angeles")
const year = date.year
const month = date.month.toString().padStart(2, "0")
return `https://api.chess.com/pub/player/${username}/games/${year}/${month}`
}
}
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